摘要
采用二步法化学强化工艺,制备经5组不同配比的混合熔盐化学强化处理的锂铝硅玻璃,研究第一步强化(IOX1)熔盐配比对玻璃化学强化性能的影响。结果表明,随着IOX1熔盐中NaNO3浓度的降低,IOX1处理后表面压应力CS_30值和强化膨胀率减小,主要是受熔盐中Na+浓度降低以及Na+/Li+离子交换量减少的影响。随着IOX1熔盐中NaNO3浓度的降低,KNO3浓度的升高,第二步强化(IOX2)后CS_K值和DOL_K值逐渐增加,表明IOX1在玻璃中形成的高浓度Na+并未促进IOX2中K+/Na+交换量,形成的K+会增加IOX2中K+/Na+交换深度。
In the present paper,lithium aluminosilicate glasses were chemically tempered in five different ratios of molten salts by two-step tempered process to investigate the effect of ratio of IOX1 mixed molten salts on tempered performance.The experimental results revealed that CS_30 value and tempered expansion rate after IOX1 treatment decreased with decreasing NaNO3 concentration in IOX1 salt solutions,that was mainly caused by the decrease of Na+concentration and Na+/Li+ion exchange capacity.CS_K and DOL_K value gradually increased with decreasing NaNO3 and increasing KNO3 concentration of IOX1 salt solutions,indicating that high Na+concentration in glass treated in IOX1 doesn't promote K+/Na+exchange capacity in IOX2,while K+in glass treated in IOX1 increases K+/Na+exchange depth after treatment in IOX2.
作者
王明忠
梁新辉
宋占财
陆平
WANG Mingzhong;LIANG Xinhui;SONG Zhancai;LU Ping(Xianning CSG Photovoltaic Glass Co.,Ltd.,Xianning 437100,China;State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 437100,China)
出处
《玻璃搪瓷与眼镜》
CAS
2020年第6期8-12,共5页
Glass Enamel & Ophthalmic Optics
关键词
锂铝硅玻璃
二步法化学强化工艺
混合熔盐
CS_30
lithium aluminosilicate glass
two-step chemically tempering process
mixed molten salts
CS_30
